CN114850008B - Microwave drying device and process for synthetic leather waterborne polyurethane coating - Google Patents
Microwave drying device and process for synthetic leather waterborne polyurethane coating Download PDFInfo
- Publication number
- CN114850008B CN114850008B CN202210644496.0A CN202210644496A CN114850008B CN 114850008 B CN114850008 B CN 114850008B CN 202210644496 A CN202210644496 A CN 202210644496A CN 114850008 B CN114850008 B CN 114850008B
- Authority
- CN
- China
- Prior art keywords
- synthetic leather
- hole
- fixed
- box
- box body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/04—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases
- B05D3/0406—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases the gas being air
- B05D3/0413—Heating with air
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
- B05D3/0254—After-treatment
- B05D3/029—After-treatment with microwaves
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/007—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by mechanical or physical treatments
- D06N3/0077—Embossing; Pressing of the surface; Tumbling and crumbling; Cracking; Cooling; Heating, e.g. mirror finish
Abstract
The application discloses microwave drying synthetic leather waterborne polyurethane coating device and technology, the power distribution box comprises a box body, feed through hole has been seted up to the lateral wall of box one side, discharging hole has been seted up on the lateral wall of box opposite side, install conveying assembly on the box, conveying assembly is including being used for treating the closed conveyer belt of dry synthetic leather from feed through hole to discharging hole conveying, the roof is fixed with microwave generator in the box, install on the box and be used for mentioning the mechanism of mentioning of treating dry synthetic leather, it has the air-supply line to fix and communicate on the lateral wall of box one side, it has the air-out pipe to fix and communicate on the lateral wall of box opposite side. This application is for reducing the vapor that produces among the microwave drying process to produce the influence to the microwave drying process, and staff's accessible outside gas transmission device is with gaseous input air-supply line, and gaseous from going out the tuber pipe and discharging to this makes vapor move towards the one side that is close to the outlet duct, has reduced the probability that the vapor that produces influences follow-up microwave drying process in the microwave drying process.
Description
Technical Field
The application relates to the technical field of microwave drying, in particular to a device and a process for drying a synthetic leather waterborne polyurethane coating by microwave.
Background
The synthetic leather is a composite material which simulates the tissue structure and the service performance of natural leather and can be used as a substitute of the natural leather, usually, non-woven fabrics impregnated with high molecular polymers are used as a simulated reticular layer, a microporous polyurethane layer is used for simulating a grain surface layer, the front surface and the back surface of the obtained synthetic leather are very similar to the leather, have certain air permeability and are closer to the natural leather than common artificial leather, and the synthetic leather is widely used for manufacturing shoes, boots, bags, balls and the like. The water-based coating takes water as a dispersion medium, has the characteristics of no toxicity, environmental protection, safety, reliability and the like, simultaneously has some important performance characteristics of a solvent-based coating, and the polyurethane coating material taking water as a solvent is widely applied to domestic and foreign synthetic leather coating processes in recent years.
In the prior art, a microwave drying device is usually adopted to perform microwave drying treatment on synthetic leather coated with a water-based polyurethane coating so as to remove moisture in the water-based polyurethane coating of the synthetic leather, however, in the microwave drying treatment process, water vapor generated in the microwave drying treatment process delays the drying process of the water-based polyurethane coating of the synthetic leather.
Disclosure of Invention
In order to solve the problems, the application provides a device and a process for drying a synthetic leather waterborne polyurethane coating by microwaves.
The application provides a microwave drying synthetic leather waterborne polyurethane coating device adopts following technical scheme:
microwave drying synthetic leather waterborne polyurethane coating device and technology, the power distribution box comprises a box body, feed-in through hole has been seted up to the lateral wall of box one side, discharging hole has been seted up on the lateral wall of box opposite side, install conveying assembly on the box, conveying assembly is including being used for treating the closed conveyer belt of dry synthetic leather from feed-in through hole to discharging hole conveying, the roof is fixed with microwave generator in the box, install on the box and be used for mentioning the mechanism of mentioning of treating dry synthetic leather, it has the air-supply line to fix and communicate on the lateral wall of box one side, it has the air-out pipe to fix and communicate on the lateral wall of box opposite side.
Through the technical scheme, the conveying belt is closed to convey the synthetic leather to be dried from the feeding through hole to the discharging through hole, the microwave generator emits microwaves after the microwave generator is started, and microwave drying treatment is carried out on moisture in the synthetic leather to be dried. In order to enhance the microwave drying effect of the synthetic leather to be dried, a worker can lift the synthetic leather to be dried through the lifting mechanism, so that the synthetic leather to be dried moves to a position close to the microwave generator. In order to reduce the influence of the steam generated in the microwave drying process on the microwave drying process, a worker can input the gas into the air inlet pipe through the external gas transmission device, and the gas is discharged from the air outlet pipe, so that the steam moves towards one side close to the air outlet pipe, and the probability that the steam generated in the microwave drying process influences the subsequent microwave drying treatment process is reduced.
Further, mention the mechanism including mentioning subassembly and drive assembly, mention the subassembly including run through set up in box top and slide the guide bar of connection, run through set up in box top and clearance fit's exhaust tube, with the exhaust tube lower extreme fixed and the dish of breathing in of intercommunication, with the fixed rectangle framework in guide bar upper end, be fixed in the movable rod in the rectangle framework and run through set up on the movable rod and with the fixed threaded rod of movable rod, the dish of breathing in is fixed in the guide bar lower extreme, the threaded rod lower extreme runs through box top and clearance fit, drive assembly is used for ordering about the threaded rod and goes up and down.
Through above-mentioned technical scheme, when using to mention the mechanism and mention treating dry synthetic leather, the staff at first need through drive assembly control threaded rod decline, until the dish bottom surface of breathing in with treat dry synthetic leather surface butt, through outside air exhaust device afterwards, the operation of bleeding to the exhaust tube for the inside negative pressure of being taken out into of dish of breathing in, treat dry synthetic leather with this suction, and in the same way, rise through drive assembly control threaded rod, until treating that dry synthetic leather is close to microwave generator, be favorable to reinforcing microwave generator to treat the microwave drying effect of dry synthetic leather.
Furthermore, the drive assembly comprises a worm wheel sleeved on the threaded rod and in threaded connection with the threaded rod, a sleeve fixed on the bottom surface of the worm wheel and rotatably connected with the top of the box body, an L-shaped limiting rod fixed on the upper surface of the box body, a fixed plate fixed on the upper surface of the box body, a second motor fixed on the side wall of the fixed plate, and a worm fixed on the end part of an output shaft of the second motor and meshed with the worm wheel, wherein a limiting groove for the horizontal part of the L-shaped limiting rod to be connected in a sliding manner is formed in the side wall of the threaded rod.
Through the technical scheme, when using drive assembly control threaded rod to go up and down, the staff need open the second motor, second motor work back drive worm rotates, with this make with worm meshing's worm wheel rotate, worm wheel and threaded rod threaded connection, the sleeve pipe is fixed with the worm wheel, the threaded rod is fixed with the movable rod, the horizontal part of L shape gag lever post slides with the spacing groove on the threaded rod and is connected in order to carry on spacingly to the circumferential direction of threaded rod, thereby make the threaded rod go up and down along vertical direction, be favorable to the movable rod, the rectangular frame body, the guide bar, the exhaust tube, the synthetic leather that the dish and the dish of breathing in was inhaled and is all upwards or move down along vertical direction.
Further, be provided with the turn-over subassembly that is used for treating dry synthetic leather and carries out the turn-over on the box, the turn-over subassembly includes the cylinder fixed with the box lateral wall, the piston rod of cylinder runs through the box lateral wall and slides and be connected, the turn-over subassembly still include with the push pedal of the piston rod end fixing of cylinder.
Through the technical scheme, after the microwave drying of synthetic leather upper surface is handled, for carrying out microwave drying to synthetic leather bottom surface and handling, the staff need close the exhaust tube that is close to discharging hole one side through manual control valve, make with this to be close to the suction of the suction disc suction of discharging hole one side and disappear, thereby make the synthetic leather that is close to discharging hole one side flagging, close microwave generator and open the cylinder, make the piston rod of cylinder drive the push pedal and move towards one side of feeding through-hole, make the synthetic leather accomplish the turn-ups operation, at this moment, the exhaust tube that will keep away from discharging hole one side through manual control valve closes, make the synthetic leather drop to the bracing piece of closed conveyer belt, start microwave generator once more, can carry out microwave drying to the reverse side of synthetic leather and handle.
Furthermore, the cross section of the push plate is arc-shaped, and the push plate protrudes towards one side close to the feeding through hole.
Through above-mentioned technical scheme, strengthened the protection effect that the synthetic leather orientation promoted the in-process to one side that is close to feed-through hole to the synthetic leather, reduced the probability that the synthetic leather bottom surface was scraped colored by the push pedal.
Furthermore, a plurality of support rods are uniformly fixed on the outer surface of the closed conveyor belt.
Through above-mentioned technical scheme, on the one hand, dry synthetic leather is treated in a plurality of bracing piece mating reaction and jack-up, has avoided producing the condition of great adsorption affinity because of synthetic leather bottom surface and closed conveyer belt upper surface butt, is favorable to the staff to suck up the synthetic leather through the dish of breathing in. On the other hand, the synthetic leather to be dried is jacked up by the supporting rods, so that the probability that the synthetic leather is absorbed by the synthetic leather after microwave drying treatment due to the fact that moisture in the synthetic leather to be dried permeates to the surface of the closed conveying belt is reduced, and the microwave drying quality of the synthetic leather is improved.
Further, be fixed with the drain board on the box inner wall is close to the position that goes out the tuber pipe, be fixed with the hydrops case on the box outer wall is close to the position that goes out the tuber pipe, the liquid outlet through-hole has been seted up on the box lateral wall is close to the position of drain board bottom, the feed liquor through-hole with liquid outlet through-hole intercommunication is seted up to the hydrops case lateral wall.
Through above-mentioned technical scheme, gaseous from the intake pipe entering box in, discharge by the outlet duct afterwards to this vapor discharge box outside that makes the microwave drying produce, a small part vapor gathers on the lateral wall that the box is close to outlet duct one side, and the drop of water increases the back, gets into the hydrops incasement through going out liquid through-hole and feed liquor through-hole in proper order by drain guide bottom, so that staff centralized processing.
Further, the cross sections of the liquid guide plate, the liquid outlet through hole and the liquid inlet through hole are V-shaped, the width of the liquid outlet through hole is equal to that of the liquid inlet through hole and smaller than that of the liquid accumulating box.
Through the technical scheme, the water drops which are gathered on the inner wall of the box body close to one side of the air outlet pipe can enter the liquid accumulation box.
Furthermore, be provided with the flowing back subassembly on the hydrops case, the flowing back subassembly includes the drain pipe and the solenoid valve that sets up on the drain pipe that fix and communicate with hydrops bottom of the case portion.
Through above-mentioned technical scheme, after the staff opened the solenoid valve, can discharge the water in the hydrops incasement from the drain pipe.
The invention also discloses a process for drying the synthetic leather waterborne polyurethane coating device by using the microwave, which comprises the following steps:
s1, placing synthetic leather to be dried on a supporting rod of a closed conveyor belt, conveying the synthetic leather to be dried into a box body through the closed conveyor belt, starting a microwave generator, and primarily drying the synthetic leather to be dried;
s2, after the synthetic leather is preliminarily dried and the upper surface of the synthetic leather to be dried is dried, the microwave generator is turned off and the second motor is turned on, the second motor works and drives the worm to rotate, the worm drives the worm gear and the sleeve to rotate, the worm gear is in threaded connection with the threaded rod, the L-shaped limiting rod is in sliding connection with the limiting groove in the side wall of the threaded rod so as to limit the circumferential rotation of the threaded rod, the threaded rod is made to move downwards along the vertical direction, and therefore the movable rod, the rectangular frame body, the guide rod, the exhaust tube and the air suction disc are made to vertically move downwards until the bottom surface of the air suction disc is abutted to the upper surface of the synthetic leather to be dried;
s3, pumping the synthetic leather to be dried at the air suction disc to negative pressure through an external negative pressure pumping device, then controlling the synthetic leather to ascend through a second motor until the upper surface of the synthetic leather is close to a microwave generator, starting the microwave generator, and further drying the synthetic leather;
s4, for drying synthetic leather bottom surface, the exhaust tube that will be close to discharging through hole one side is closed through manual control valve, make the suction of the dish of breathing in that is close to discharging through hole one side disappear with this, thereby make the synthetic leather that is close to discharging through hole one side flagging, close microwave generator and open the cylinder, make the piston rod of cylinder drive the push pedal and move towards one side of feeding through hole, make the synthetic leather accomplish turn-ups operation, at this moment, the exhaust tube that will keep away from discharging through hole one side through manual control valve is closed, make the synthetic leather drop to the bracing piece of closed conveyer belt, start microwave generator once more, can carry out microwave drying to the reverse side of synthetic leather.
By the technical scheme, the synthetic leather is favorably subjected to full microwave drying treatment, and the microwave drying quality is improved.
In summary, the present application includes at least one of the following advantageous technical effects:
(1) In this application, closed conveyer belt will treat dry synthetic leather and follow the conveying of feed through hole to discharging hole, and after opening microwave generator, microwave generator launches the microwave, treats that the inside moisture of dry synthetic leather carries out microwave drying and handles. In order to enhance the microwave drying effect of the synthetic leather to be dried, a worker can lift the synthetic leather to be dried through the lifting mechanism, so that the synthetic leather to be dried moves to a position close to the microwave generator. In order to reduce the influence of the water vapor generated in the microwave drying process on the microwave drying process, a worker can input the gas into the air inlet pipe through the external gas transmission device, and the gas is discharged from the air outlet pipe, so that the water vapor moves towards one side close to the air outlet pipe, and the probability that the water vapor generated in the microwave drying process influences the subsequent microwave drying treatment process is reduced;
(2) In the application, when the lifting mechanism is used for lifting the synthetic leather to be dried, a worker firstly controls the threaded rod to descend through the driving assembly until the bottom surface of the air suction disc is abutted to the surface of the synthetic leather to be dried, then air is sucked through the air suction pipe through the external air suction device, so that negative pressure is sucked inside the air suction disc, the synthetic leather to be dried is sucked up until the synthetic leather to be dried is close to the microwave generator, and the microwave drying effect of the microwave generator on the synthetic leather to be dried is enhanced;
(3) In this application, when using drive assembly control threaded rod to go up and down, the staff need open the second motor, second motor work back drives the worm and rotates, make with this and rotate with worm meshed's worm wheel, worm wheel and threaded rod threaded connection, the sleeve pipe is fixed with the worm wheel, the threaded rod is fixed with the movable rod, the horizontal part of L shape gag lever post slides with the spacing groove on the threaded rod and is connected and carries on spacingly in order to carry out the circumferential direction to the threaded rod, thereby make the threaded rod go up and down along vertical direction, be favorable to the movable rod, the rectangular frame body, the guide bar, the exhaust tube, the synthetic leather that the dish and the dish of being inhaled by the air suction sucked up all upwards or move down along vertical direction.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present application;
FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;
FIG. 3 is a schematic view of the present application showing a construction of a lift assembly;
FIG. 4 is an enlarged schematic view of the structure at B in FIG. 2;
fig. 5 is a schematic structural view of the present application for highlighting the turn-over assembly.
The reference numbers in the figures illustrate:
1. a box body; 11. a feed through hole; 12. a discharge through hole; 13. a microwave generator; 14. an air inlet pipe; 15. an air outlet pipe; 16. a liquid outlet through hole; 2. a transfer assembly; 21. a first bracket; 22. a second bracket; 23. a first motor; 24. a driving wheel; 25. a driven wheel; 26. closing the conveyor belt; 3. a lifting mechanism; 31. lifting the assembly; 311. a guide bar; 312. an exhaust pipe; 313. a suction plate; 314. a rectangular frame body; 315. a movable rod; 316. a threaded rod; 3161. a limiting groove; 32. a drive assembly; 321. a worm gear; 322. a sleeve; 323. an L-shaped limiting rod; 324. a fixing plate; 325. a second motor; 326. a worm; 4. a drainage assembly; 41. a liquid outlet pipe; 42. an electromagnetic valve; 5. a turn-over assembly; 51. a cylinder; 52. pushing the plate; 6. a liquid guide plate; 7. a liquid accumulation box; 71. a liquid inlet through hole; 8. a support bar; 9. synthetic leather.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application; it is obvious that the embodiments described are only a part of the embodiments of the present application, and not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without making creative efforts based on the embodiments in the present application belong to the protection scope of the present application.
Example 1:
the present application is described in further detail below with reference to the attached drawings.
The embodiment of the application discloses a microwave drying synthetic leather 9 waterborne polyurethane coating device, please refer to fig. 1-5, which comprises a box body 1, a conveying assembly 2, a lifting mechanism 3, a liquid discharging assembly 4 and a turn-over assembly 5. The box body 1 is of a hollow cuboid structure, a feeding through hole 11 is formed in the side wall of one side of the box body 1, a discharging through hole 12 is formed in the side wall of the other side of the box body 1, and a microwave generator 13 is fixed to the inner top wall of the box body 1.
The conveying assembly 2 is mounted on the box body 1 and used for conveying the synthetic leather 9 to be dried from the feeding through hole 11 to the discharging through hole 12, and the conveying assembly 2 comprises a first support 21, a second support 22, a first motor 23, a driving wheel 24, a driven wheel 25 and a closed conveying belt 26. The first bracket 21 and the second bracket 22 are respectively arranged at two sides of the box body 1, the first motor 23 is fixed on the side wall of the first bracket 21, and the output shaft of the first motor 23 penetrates through the first bracket 21 and is rotatably connected with the first bracket 21. The axis of the driving wheel 24 coincides with the axis of the output shaft of the first motor 23, and one end of the driving wheel 24 is fixed with the end of the output shaft of the first motor 23. The driven wheel 25 has a circular cross section with an axis parallel to the axis of the driving wheel 24, and the end of the driven wheel 25 is rotatably connected to the second bracket 22. The closed conveying belt 26 is of a closed annular belt-shaped structure, the closed conveying belt 26 sequentially penetrates through the feeding through hole 11 and the discharging through hole 12, and the inner surface of the closed conveying belt 26 is abutted against the arc-shaped surface of the driven wheel 25 and the arc-shaped surface of the driving wheel 24. The conveyor belt 26 is closed to convey the synthetic leather 9 to be dried from the feeding through hole 11 to the discharging through hole 12, after the microwave generator 13 is started, the microwave generator 13 emits microwaves, and the microwave drying treatment is carried out on the moisture in the synthetic leather 9 to be dried.
The lifting mechanism 3 is mounted on the box body 1 and used for lifting the synthetic leather 9 to be dried, the lifting mechanism 3 comprises a lifting assembly 31 and a driving assembly 32, and the lifting assembly 31 comprises a guide rod 311, an air suction pipe 312, an air suction disc 313, a rectangular frame 314, a movable rod 315 and a threaded rod 316. The guide rod 311 is a vertically arranged round rod-shaped structure, and penetrates through the top of the box body 1 and is connected with the box body in a sliding manner. The air exhaust pipe 312 is of a hose structure, one end of the air exhaust pipe 312 is fixed and communicated with an external air exhaust device, and the other end of the air exhaust pipe 312 penetrates through the top of the box body 1 and is in clearance fit with the top. The air suction disc 313 is a circular truncated cone-shaped suction disc, the top of the air suction disc 313 is fixed and communicated with the lower end of the air suction pipe 312, and the air suction disc 313 is fixed at the lower end of the guide rod 311. The rectangular frame 314 is a rectangular annular frame structure, the rectangular frame 314 is fixed to the upper ends of the plurality of guide rods 311, and the height of the bottom surface of the rectangular frame 314 is greater than the height of the top of the box 1. The movable rod 315 is a horizontally disposed rectangular rod-shaped structure, and two ends of the movable rod 315 are fixed to the inner side walls of two sides of the rectangular frame 314. The axis of the threaded rod 316 is vertical, the threaded rod is arranged on the movable rod 315 in a penetrating manner and fixed with the movable rod 315, and the lower end of the threaded rod 316 penetrates through the top of the box body 1 and is in clearance fit with the top.
The driving assembly 32 is used for driving the threaded rod 316 to ascend and descend, and the driving assembly 32 includes a worm gear 321, a sleeve 322, an L-shaped limiting rod 323, a fixing plate 324, a second motor 325 and a worm 326. The axis of the worm gear 321 coincides with the axis of the threaded rod 316, and the worm gear 321 is sleeved on the threaded rod 316 and is in threaded connection. The sleeve 322 is a round tubular structure, the axis of the sleeve is coincident with the axis of the threaded rod 316, the upper end of the sleeve 322 is fixed with the bottom surface of the worm gear 321, and the lower end of the sleeve 322 is rotatably connected with the top of the box body 1. The L-shaped limiting rod 323 is of an L-shaped rod-shaped structure, the lower end of the vertical part of the L-shaped limiting rod 323 is fixed with the top of the box body 1, and a limiting groove 3161 for the horizontal part of the L-shaped limiting rod 323 to be connected in a sliding manner is formed in the side wall of the threaded rod 316. The fixing plate 324 has a rectangular plate-like structure, and the bottom surface thereof is fixed to the upper surface of the case 1. The second motor 325 is fixed to a side wall of one side of the fixing plate 324, and an axis of an output shaft of the second motor 325 is perpendicular to an axis of the threaded rod 316. The axis of the worm 326 coincides with the axis of the output shaft of the second motor 325, one end of the worm 326 is fixed to the end of the output shaft of the second motor 325, and the worm 326 meshes with the worm wheel 321. In order to enhance the microwave drying effect of the synthetic leather 9 to be dried, a worker needs to start the second motor 325, the second motor 325 drives the worm 326 to rotate after working, so that the worm gear 321 meshed with the worm 326 rotates, the worm gear 321 is in threaded connection with the threaded rod 316, the sleeve 322 is fixed with the worm gear 321, the threaded rod 316 is fixed with the movable rod 315, the horizontal part of the L-shaped limiting rod 323 is connected with the limiting groove 3161 on the threaded rod 316 in a sliding manner to limit the circumferential rotation of the threaded rod 316, so that the threaded rod 316 is lifted in the vertical direction, the movable rod 315, the rectangular frame 314, the guide rod 311, the air suction pipe 312, the air suction disc 313 and the synthetic leather 9 sucked up by the air suction disc 313 all move upwards in the vertical direction until the synthetic leather 9 to be dried is close to the microwave generator 13, and the microwave drying effect of the synthetic leather 9 to be dried by the microwave generator 13 is enhanced.
In order to reduce the influence of the water vapor generated in the microwave drying process on the microwave drying process, an air inlet pipe 14 is fixed and communicated on the side wall of one side of the box body 1, an air outlet pipe 15 is fixed and communicated on the side wall of the other side of the box body 1, in the microwave drying process, a worker can input air into the air inlet pipe 14 through an external air conveying device, and the air is discharged from the air outlet pipe 15, so that the water vapor moves towards one side close to an air outlet pipe, and the probability that the water vapor generated in the microwave drying process influences the subsequent microwave drying treatment process is reduced.
In order to facilitate the water drops gathered on the inner wall of the box body 1 close to one side of the air outlet pipe 15 to be discharged out of the box body 1, a liquid guide plate 6 is fixed on the position of the inner wall of the box body 1 close to the air outlet pipe 15, a liquid accumulating box 7 is fixed on the position of the outer wall of the box body 1 close to the air outlet pipe 15, a liquid outlet through hole 16 is formed in the position of the side wall of the box body 1 close to the bottom of the liquid guide plate 6, a liquid inlet through hole 71 communicated with the liquid outlet through hole 16 is formed in the side wall of the liquid accumulating box 7, in the embodiment, the cross sections of the liquid guide plate 6, the liquid outlet through hole 16 and the liquid inlet through hole 71 are all in a V shape, the width of the liquid outlet through hole 16 is equal to that of the liquid inlet through hole 71, and is smaller than the width of the liquid accumulating box 7. Gas enters the box body 1 from the gas inlet pipe and is discharged through the gas outlet pipe, so that steam generated by microwave drying is discharged out of the box body 1, a small part of steam is gathered on the side wall of the box body 1 close to one side of the gas outlet pipe, and after water drops are increased, the steam enters the liquid accumulating box 7 through the liquid outlet through hole 16 and the liquid inlet through hole 71 from the bottom of the liquid guide plate 6 in sequence, so that workers can perform centralized treatment.
The liquid discharge assembly 4 is arranged on the liquid accumulation box 7, the liquid discharge assembly 4 comprises a liquid outlet pipe 41 fixed and communicated with the bottom of the liquid accumulation box 7 and an electromagnetic valve 42 arranged on the liquid outlet pipe 41, and after the electromagnetic valve 42 is opened by a worker, water in the liquid accumulation box 7 can be discharged from the liquid outlet pipe 41.
The turn-over component 5 is arranged on the box body 1 and used for turning over the synthetic leather 9 to be dried, and the turn-over component 5 comprises an air cylinder 51 and a push plate 52. The cylinder body of the cylinder 51 is fixed with the outer side wall of the box body 1, the telescopic direction of the piston rod of the cylinder 51 is parallel to the transmission direction of the synthetic leather 9 on the closed conveyor belt 26, and the piston rod of the cylinder 51 penetrates through the side wall of the box body 1 and is connected in a sliding mode. The push plate 52 is a plate-shaped structure with an arc-shaped cross section, the push plate 52 protrudes towards one side close to the feeding through hole 11, and the surface of one side of the push plate 52 far away from the feeding through hole 11 is fixed with the end part of the piston rod of the cylinder 51. After the microwave drying treatment of the upper surface of the synthetic leather 9 is completed, in order to perform microwave drying treatment on the bottom surface of the synthetic leather 9, a worker needs to close the air suction pipe 312 close to one side of the discharge through hole 12 through a manual adjusting valve, so that suction of the air suction disc 313 close to one side of the discharge through hole 12 disappears, thereby the synthetic leather 9 close to one side of the discharge through hole 12 is made to droop, the microwave generator 13 is closed and the cylinder 51 is opened, the piston rod of the cylinder 51 drives the push plate 52 to move towards one side of the feed through hole 11, so that the turnover operation of the synthetic leather 9 is completed, at this moment, the air suction pipe 312 far away from one side of the discharge through hole 12 is closed through the manual adjusting valve, so that the synthetic leather 9 drops onto the support rod 8 of the closed conveyor belt 26, the microwave generator 13 is started again, and microwave drying treatment can be performed on the reverse side of the synthetic leather 9.
In this embodiment, closed conveyer belt 26 surface evenly is fixed with a plurality of bracing pieces 8, and on the one hand, a plurality of bracing pieces 8 mating reaction and jack-up treat dry synthetic leather 9 have avoided producing the condition of great adsorption affinity because of synthetic leather 9 bottom surface and closed conveyer belt 26 upper surface butt, are favorable to the staff to suck up synthetic leather 9 through air suction disc 313. On the other hand, the supporting rods 8 jack up the synthetic leather 9 to be dried, so that the probability that the synthetic leather 9 subjected to microwave drying treatment absorbs moisture in the synthetic leather 9 which permeates to the surface of the closed conveying belt 26 is reduced, and the microwave drying quality of the synthetic leather 9 is improved.
The invention also discloses a process for microwave drying of the synthetic leather 9 waterborne polyurethane coating device, which comprises the following steps:
s1, placing synthetic leather 9 to be dried on a supporting rod 8 of a closed conveying belt 26, conveying the synthetic leather 9 to be dried into a box body 1 through the closed conveying belt 26, starting a microwave generator 13, and primarily drying the synthetic leather 9 to be dried;
s2, after the synthetic leather 9 to be dried is dried after the preliminary drying, the microwave generator 13 is closed and the second motor 325 is started, the second motor 325 works and drives the worm 326 to rotate, the worm 326 drives the worm gear 321 and the sleeve 322 to rotate, the worm gear 321 is in threaded connection with the threaded rod 316, the L-shaped limiting rod 323 is in sliding connection with the limiting groove 3161 in the side wall of the threaded rod 316 so as to limit the circumferential rotation of the threaded rod 316, the threaded rod 316 moves downwards along the vertical direction, and therefore the movable rod 315, the rectangular frame body 314, the guide rod 311, the air suction pipe 312 and the air suction disc 313 vertically move downwards until the bottom surface of the air suction disc 313 abuts against the upper surface of the synthetic leather 9 to be dried;
s3, pumping the synthetic leather 9 to be dried at the position of the air suction disc 313 to negative pressure through an external negative pressure pumping device, then controlling the synthetic leather 9 to ascend through a second motor 325 until the upper surface of the synthetic leather 9 is close to a microwave generator 13, starting the microwave generator 13, and further drying the synthetic leather 9;
s4, for drying the bottom surface of the synthetic leather 9, the exhaust pipe 312 close to one side of the discharging through hole 12 is closed through a manual regulating valve, so that the suction force of the suction disc 313 close to one side of the discharging through hole 12 disappears, so that the synthetic leather 9 close to one side of the discharging through hole 12 droops, the microwave generator 13 is closed and the air cylinder 51 is opened, so that the piston rod of the air cylinder 51 drives the push plate 52 to move towards one side of the feeding through hole 11, so that the synthetic leather 9 finishes the turn-over operation, at the moment, the exhaust pipe 312 far away from one side of the discharging through hole 12 is closed through the manual regulating valve, so that the synthetic leather 9 drops onto the supporting rod 8 of the closed conveying belt 26, the microwave generator 13 is started again, and the microwave drying treatment can be carried out on the reverse surface of the synthetic leather 9.
The implementation principle of the microwave drying synthetic leather 9 waterborne polyurethane coating device in the embodiment of the application is as follows: the conveying belt 26 is closed to convey the synthetic leather 9 to be dried from the feeding through hole 11 to the discharging through hole 12, after the microwave generator 13 is started, the microwave generator 13 emits microwaves, and the microwave drying treatment is carried out on the moisture in the synthetic leather 9 to be dried. In order to enhance the microwave drying effect of the synthetic leather 9 to be dried, a worker needs to start the second motor 325, the second motor 325 drives the worm 326 to rotate after working, so that the worm gear 321 meshed with the worm 326 rotates, the worm gear 321 is in threaded connection with the threaded rod 316, the sleeve 322 is fixed with the worm gear 321, the threaded rod 316 is fixed with the movable rod 315, the horizontal part of the L-shaped limiting rod 323 is connected with the limiting groove 3161 on the threaded rod 316 in a sliding manner to limit the circumferential rotation of the threaded rod 316, so that the threaded rod 316 is lifted in the vertical direction, the movable rod 315, the rectangular frame 314, the guide rod 311, the air suction pipe 312, the air suction disc 313 and the synthetic leather 9 sucked up by the air suction disc 313 all move upwards in the vertical direction until the synthetic leather 9 to be dried is close to the microwave generator 13, and the microwave drying effect of the synthetic leather 9 to be dried by the microwave generator 13 is enhanced. In order to reduce the influence of the water vapor generated in the microwave drying process on the microwave drying process, a worker can input the gas into the air inlet pipe 14 through the external gas transmission device, and the gas is discharged from the air outlet pipe 15, so that the water vapor moves towards one side close to the air outlet pipe, and the probability that the water vapor generated in the microwave drying process influences the subsequent microwave drying treatment process is reduced.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (7)
1. A microwave drying synthetic leather waterborne polyurethane coating device is characterized in that: the drying device comprises a box body (1), wherein a feeding through hole (11) is formed in the side wall of one side of the box body (1), a discharging through hole (12) is formed in the side wall of the other side of the box body (1), a conveying assembly (2) is installed on the box body (1), the conveying assembly (2) comprises a closed conveying belt (26) used for conveying synthetic leather (9) to be dried from the feeding through hole (11) to the discharging through hole (12), a microwave generator (13) is fixed on the inner top wall of the box body (1), a lifting mechanism (3) used for lifting the synthetic leather (9) to be dried is installed on the box body (1), an air inlet pipe (14) is fixed and communicated on the side wall of one side of the box body (1), and an air outlet pipe (15) is fixed and communicated on the side wall of the other side of the box body (1);
the lifting mechanism (3) comprises a lifting component (31) and a driving component (32), the lifting component (31) comprises a guide rod (311) which is arranged at the top of the box body (1) in a penetrating mode and connected in a sliding mode, an air suction pipe (312) which is arranged at the top of the box body (1) in a penetrating mode and in clearance fit with the top of the box body (1), an air suction disc (313) which is fixed to and communicated with the lower end of the air suction pipe (312), a rectangular frame body (314) which is fixed to the upper end of the guide rod (311), a movable rod (315) which is fixed to the rectangular frame body (314) and a threaded rod (316) which is arranged on the movable rod (315) in a penetrating mode and is fixed to the movable rod (315), the air suction disc (313) is fixed to the lower end of the guide rod (311), the lower end of the threaded rod (316) penetrates through the top of the box body (1) in clearance fit with the lower end of the threaded rod (316), and the driving component (32) is used for driving the threaded rod (316) to ascend and descend;
the driving assembly (32) comprises a worm wheel (321) sleeved on the threaded rod (316) and in threaded connection with the threaded rod (316), a sleeve (322) fixed on the bottom surface of the worm wheel (321) and in rotary connection with the top of the box body (1), an L-shaped limiting rod (323) fixed on the upper surface of the box body (1), a fixing plate (324) fixed on the upper surface of the box body (1), a second motor (325) fixed on the side wall of the fixing plate (324), and a worm (326) fixed with the end part of an output shaft of the second motor (325) and meshed with the worm wheel (321), wherein a limiting groove (3161) for the horizontal part of the L-shaped limiting rod (323) to be connected in a sliding manner is formed in the side wall of the threaded rod (316);
be provided with turn-over subassembly (5) that is used for treating dry synthetic leather (9) and carries out the turn-over on box (1), turn-over subassembly (5) include with box (1) lateral wall fixed cylinder (51), the piston rod of cylinder (51) runs through box (1) lateral wall and slides and is connected, turn-over subassembly (5) still include with piston rod end fixing's of cylinder (51) push pedal (52).
2. The microwave drying synthetic leather waterborne polyurethane coating device of claim 1, wherein: the cross section of the push plate (52) is arc-shaped, and the push plate (52) protrudes towards one side close to the feed through hole (11).
3. The microwave drying synthetic leather waterborne polyurethane coating device of claim 2, wherein: a plurality of support rods (8) are uniformly fixed on the outer surface of the closed conveyor belt (26).
4. The microwave-dried synthetic leather waterborne polyurethane coating apparatus of claim 3, wherein: be fixed with drain board (6) on the position that box (1) inner wall is close to out tuber pipe (15), be fixed with hydrops case (7) on the position that box (1) outer wall is close to out tuber pipe (15), seted up out liquid through-hole (16) on the position that box (1) lateral wall is close to drain board (6) bottom, feed liquor through-hole (71) with play liquid through-hole (16) intercommunication are seted up to hydrops case (7) lateral wall.
5. The microwave-dried synthetic leather waterborne polyurethane coating device of claim 4, wherein: the cross section of drain board (6), play liquid through-hole (16) and feed liquor through-hole (71) all is the V-arrangement, the width that goes out liquid through-hole (16) equals with the width of feed liquor through-hole (71), and is less than the width of hydrops case (7).
6. The microwave-dried synthetic leather waterborne polyurethane coating device of claim 4, wherein: be provided with flowing back subassembly (4) on hydrops case (7), flowing back subassembly (4) are including drain pipe (41) and set up solenoid valve (42) on drain pipe (41) fixed and the intercommunication with hydrops case (7) bottom.
7. A microwave drying synthetic leather waterborne polyurethane coating device according to any one of claims 1 to 6, wherein the drying process comprises the following steps:
s1, placing synthetic leather (9) to be dried on a supporting rod (8) of a closed conveying belt (26), conveying the synthetic leather (9) to be dried into a box body (1) through the closed conveying belt (26), starting a microwave generator (13), and primarily drying the synthetic leather (9) to be dried;
s2, after the synthetic leather (9) to be dried is dried initially, the microwave generator (13) is closed, the second motor (325) is started, the second motor (325) works and drives the worm (326) to rotate, the worm (326) drives the worm wheel (321) and the sleeve (322) to rotate, the worm wheel (321) is in threaded connection with the threaded rod (316), the L-shaped limiting rod (323) is connected with a limiting groove (3161) in the side wall of the threaded rod (316) in a sliding mode to limit circumferential rotation of the threaded rod (316), and therefore the threaded rod (316) moves downwards along the vertical direction, the movable rod (315), the rectangular frame body (314), the guide rod (311), the air suction pipe (312) and the air suction disc (313) move downwards vertically until the bottom surface of the air suction disc (313) abuts against the upper surface of the synthetic leather (9) to be dried;
s3, pumping the synthetic leather (9) to be dried at the position of the air suction disc (313) to negative pressure through an external negative pressure pumping device, then controlling the synthetic leather (9) to ascend through a second motor (325) until the upper surface of the synthetic leather (9) is close to a microwave generator (13), starting the microwave generator (13), and further drying the synthetic leather (9);
s4, in order to dry the bottom surface of the synthetic leather (9), the air suction pipe (312) close to one side of the discharging through hole (12) is closed through a manual regulating valve, so that the suction force of the air suction disc (313) close to one side of the discharging through hole (12) disappears, the synthetic leather (9) close to one side of the discharging through hole (12) sags, the microwave generator (13) is closed, the air cylinder (51) is opened, the piston rod of the air cylinder (51) drives the push plate (52) to move towards one side of the feeding through hole (11), the synthetic leather (9) completes the turn-over operation, at the moment, the air suction pipe (312) far away from one side of the discharging through hole (12) is closed through the manual regulating valve, the synthetic leather (9) drops onto the supporting rod (8) of the closed conveying belt (26), the microwave generator (13) is started again, and the microwave drying treatment can be carried out on the reverse side of the synthetic leather (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210644496.0A CN114850008B (en) | 2022-06-08 | 2022-06-08 | Microwave drying device and process for synthetic leather waterborne polyurethane coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210644496.0A CN114850008B (en) | 2022-06-08 | 2022-06-08 | Microwave drying device and process for synthetic leather waterborne polyurethane coating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114850008A CN114850008A (en) | 2022-08-05 |
| CN114850008B true CN114850008B (en) | 2023-01-10 |
Family
ID=82623941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210644496.0A Active CN114850008B (en) | 2022-06-08 | 2022-06-08 | Microwave drying device and process for synthetic leather waterborne polyurethane coating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114850008B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2330146A1 (en) * | 1999-02-25 | 2000-08-31 | Kabushikikaisha Taiheiseisakusho | Take-up reel, veneer reeling apparatus, tape feeding unit for veneer roll, and veneer roll unwinding apparatus and a production method for laminated wood |
| BRMU8700836U (en) * | 2007-05-04 | 2008-10-07 | Edda Silvestro | air-flow spiral swirling modular microwave dryer on conveyor belt |
| FR2915560A1 (en) * | 2007-04-24 | 2008-10-31 | Jacques Louis Auguste Soux | Microwave drying tunnel for organic or mineral materials, has microwave generators arranged on successive frames and performing drying and dehydration of organic or mineral materials that are linearly routed inside tunnel by conveyor belt |
| CN203543295U (en) * | 2013-09-22 | 2014-04-16 | 浙江五洲实业有限公司 | Coating microwave heating oven for waterborne polyurethane synthetic leather |
| CN109751838A (en) * | 2018-12-24 | 2019-05-14 | 安徽青松食品有限公司 | A kind of vegetable noodles production technology and its microwave drier |
| CN110608595A (en) * | 2019-09-18 | 2019-12-24 | 四川大学 | Microwave drying synthetic leather waterborne polyurethane coating device |
| WO2021169460A1 (en) * | 2020-02-28 | 2021-09-02 | 北新集团建材股份有限公司 | Sheet material compositing production line |
| KR20210109490A (en) * | 2020-02-27 | 2021-09-06 | 이영철 | Microwave drying equipment |
| CN114001539A (en) * | 2021-10-25 | 2022-02-01 | 福建木井木业科技有限公司 | Full-automatic plate dryer |
| EP3950520A2 (en) * | 2017-12-04 | 2022-02-09 | Sáenz Guillermo López-Aróstegui | Method and machine for creating and sealing flaps of flexible packages, and various models of flexible 3d plus-type packages |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5014838B2 (en) * | 2007-03-02 | 2012-08-29 | 株式会社リコー | Image forming apparatus |
| CN207904291U (en) * | 2018-01-19 | 2018-09-25 | 福建省晋江市安海秋夏皮革有限公司 | A kind of leather production fast-drying device |
| CN208238480U (en) * | 2018-05-10 | 2018-12-14 | 福建宏正利合成革有限公司 | Drying device is used in a kind of production of synthetic leather |
-
2022
- 2022-06-08 CN CN202210644496.0A patent/CN114850008B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2330146A1 (en) * | 1999-02-25 | 2000-08-31 | Kabushikikaisha Taiheiseisakusho | Take-up reel, veneer reeling apparatus, tape feeding unit for veneer roll, and veneer roll unwinding apparatus and a production method for laminated wood |
| FR2915560A1 (en) * | 2007-04-24 | 2008-10-31 | Jacques Louis Auguste Soux | Microwave drying tunnel for organic or mineral materials, has microwave generators arranged on successive frames and performing drying and dehydration of organic or mineral materials that are linearly routed inside tunnel by conveyor belt |
| BRMU8700836U (en) * | 2007-05-04 | 2008-10-07 | Edda Silvestro | air-flow spiral swirling modular microwave dryer on conveyor belt |
| CN203543295U (en) * | 2013-09-22 | 2014-04-16 | 浙江五洲实业有限公司 | Coating microwave heating oven for waterborne polyurethane synthetic leather |
| EP3950520A2 (en) * | 2017-12-04 | 2022-02-09 | Sáenz Guillermo López-Aróstegui | Method and machine for creating and sealing flaps of flexible packages, and various models of flexible 3d plus-type packages |
| CN109751838A (en) * | 2018-12-24 | 2019-05-14 | 安徽青松食品有限公司 | A kind of vegetable noodles production technology and its microwave drier |
| CN110608595A (en) * | 2019-09-18 | 2019-12-24 | 四川大学 | Microwave drying synthetic leather waterborne polyurethane coating device |
| KR20210109490A (en) * | 2020-02-27 | 2021-09-06 | 이영철 | Microwave drying equipment |
| WO2021169460A1 (en) * | 2020-02-28 | 2021-09-02 | 北新集团建材股份有限公司 | Sheet material compositing production line |
| CN114001539A (en) * | 2021-10-25 | 2022-02-01 | 福建木井木业科技有限公司 | Full-automatic plate dryer |
Non-Patent Citations (2)
| Title |
|---|
| 微波干燥对水性聚氨酯涂膜性能影响;宋恒;《皮革科学与工程》;20210331;第31卷(第3期);第19-24页 * |
| 微波干燥对皮革涂饰成膜剂性能的影响;张金伟等;《皮革科学与工程》;20160628(第03期);第5-8页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114850008A (en) | 2022-08-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108816581A (en) | A kind of truss reinforcing bar spray-painting plant and its application method | |
| CN108004846B (en) | Ancient book reinforcing method | |
| CN114850008B (en) | Microwave drying device and process for synthetic leather waterborne polyurethane coating | |
| CN107470075A (en) | A kind of furniture spray painting drying process equipment | |
| CN108580136A (en) | A kind of cylinder timber processing spray-painting plant and method for paint spraying | |
| CN210632608U (en) | Glass cleaning and drying integrated machine | |
| CN109205310A (en) | A kind of cloth processing cloth automatic loading/unloading adsorbing mechanism | |
| CN111759056A (en) | Flow production line for sole fitting | |
| CN205613633U (en) | Full -automatic application equipment | |
| CN218673038U (en) | Quick dewatering device of glossy ganoderma | |
| CN209715555U (en) | A kind of oxidation of wood-based plate removes formaldehyde unit equipment | |
| CN211436881U (en) | Machine parts processing drying device of environmental protection | |
| CN111558491A (en) | Workpiece powder spraying production line | |
| CN208567328U (en) | A kind of chemical industry measurement drying box | |
| CN110193895A (en) | A kind of chemical fiber wire production prepares polyester master particle processing unit | |
| CN110124444A (en) | A kind of method that physics removes formaldehyde | |
| CN112934539B (en) | Paint layer coating equipment for furniture | |
| CN115031514A (en) | Printing and dyeing drying and winding device | |
| CN209022942U (en) | Transfer device is used in a kind of processing of hickory nut | |
| CN214160264U (en) | Immersion painting device for parking spot lock component | |
| CN112452617A (en) | Coating equipment capable of treating waste gas | |
| CN111296609A (en) | Isolated automatic scenting machine | |
| CN111804496B (en) | Metallic paint spraying device for automobile shell | |
| CN210964648U (en) | Gas defense facility production facility for synthetic leather batching | |
| CN217808918U (en) | Sewage treatment aerobic tank |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Device and process for microwave drying waterborne polyurethane coating on synthetic leather Effective date of registration: 20230615 Granted publication date: 20230110 Pledgee: Zhejiang Tailong Commercial Bank Co.,Ltd. Lishui Liandu sub branch Pledgor: Zhejiang Jiake New Material Technology Co.,Ltd. Registration number: Y2023980044159 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |